Relay/ component/ circuit for 15 mV switching voltage?

Michg66ByMichg66

Hello,
The goal is to switch a clockwork DC load with consumption data of 1.5V and 0.8mA. This clockwork is powered by a single AA battery and is used in many simple wall clocks.
The component I want to use to switch on the clockwork can supply 15mV switching voltage.
At 0V, the clockwork should be off. At 15mV, the clockwork circuit should be closed and the clock should run.
The relays I have found so far require a higher switching voltage.
Does anyone have a tip or an idea?

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easylife2
easylife2
1 year ago

15mV is "nothing", what is that for a signal or component that supplies this voltage?

Without using additional amplification and a necessary power source (possibly the 1.5V battery of the clockwork), this will be nothing.

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newcomer
newcomer
1 year ago

an OP comparator in between would have to be compared, for example, to 10 mV and then switches relays or optocouplers corresponding to the output.

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